How a retail rate actually gets set
Retail electricity prices are not set by the market in most of the US — they are set by process. A utility's expected costs (generation, fuel, wires, programs, profit on capital) go into a rate case; the regulator approves a revenue requirement that becomes your price per kWh. On top sit fuel-adjustment clauses that pass fuel swings through more quickly, sometimes semi-annually.
So when prices jump, the causes are the inputs: the cost of fuel burned, the cost of new capital (poles, wires, generation), the cost of wildfire and storm hardening, and the growth of data-center-driven demand in some regions. "Prices rose" is always one of those stories wearing a number.
Live from the EIA data on this site
Fastest five-year riser in our data: California at +52.2% versus its five-year average — 34.74¢/kWh today.
Fuel: the fast mover
The 2021–2023 natural-gas price shock is the cleanest recent example. Gas sets the marginal price in many wholesale markets, so when gas spiked, wholesale power prices followed almost immediately — and fuel clauses dragged retail rates up over the following year. Gas prices have since come well off the peaks, but rate-case increases approved during the spike do not un-approve themselves; rates ratchet up faster than they ratchet down.
The twenty-year gas price record on this site shows the shock and the retreat — worth reading against the electric series for any state where gas-heavy generation dominates.
Capital: the slow mover that compounds
The quieter driver is infrastructure spending. Distribution upgrades, transmission projects, wildfire mitigation and new generation are recovered over decades through rate cases. Because utilities earn a return on capital investment, each new project adds a permanent slice to the rate — which is why the price-change table shows steady drift in most states rather than one-time steps.
Demand growth from data centers is the newest input: large loads in a region can push the need for new capacity and wires, and the costs land in the same mechanism.
The spread across states — and the exceptions
The national trend hides enormous state variance. Some states' rates barely moved across five years; a few more than doubled. The persistent pattern: states with high-cost island or import-dependent grids sit at the top (Hawaii's isolation makes its rates structurally different), states with fuel-shift exposure moved with gas, and regulated states with large capital programs drifted up with their rate cases.
Compare your state directly: the history page ranks latest rate versus 5- and 10-year averages, and each state page carries the full monthly series with the data window stamped.
Frequently asked questions
Why did electricity prices go up so much?
Three stacked drivers: the 2021–2023 natural-gas price shock passed through fuel clauses, utilities’ capital programs (wires, generation, wildfire hardening) added permanent rate-case increases, and in some regions new large loads are pulling forward infrastructure spending.
Do electricity prices go back down when fuel gets cheaper?
Fuel-adjustment components fall with fuel prices, but rate-case increases are permanent until a future case reduces them. That asymmetry is why rates ratchet up faster than they fall.
Which states saw the biggest electricity price increases?
The live answer changes monthly — the price-history table on this site ranks every state by its latest rate versus its 5- and 10-year averages, computed from EIA data.
Is my utility allowed to raise rates without asking?
Within approved mechanisms: fuel clauses can move with documented fuel costs, and rate cases are filed with (and decided by) the state regulator — not set unilaterally.
Sources & further reading
WattRate publishes EIA data and general explainers — not financial advice. Your own bill reflects your utility's tariffs and your usage.